<template>
  <view>
    <lay-layer 
        :title="layerTitle" 
        v-model="layerVisible" 
        :shadeClose="false"
        :area="['500px','480px']" 
      >
      <component 
          ref="childComponent"
          :is="componentName" 
          :key="componentName"
          @manualClose="layerComponent"
          @refreshData="loadData()"
        ></component>
    </lay-layer>
    
    <view class="uni-header">
      <view class="uni-group">
        <view class="uni-title"></view>
        <view class="uni-sub-title"></view>
      </view>
      <view class="uni-group">
        <!-- <input class="uni-search" type="text" v-model="query" @confirm="search" placeholder="请输入搜索内容" /> -->
        <!-- <button class="uni-button" type="default" size="mini" @click="search">搜索</button> -->
        <lay-button type="normal" @click="search" size="sm">
          <i class="layui-icon layui-icon-refresh-three marginR5"></i>刷新
        </lay-button>
        <lay-button type="primary"  @click="layerComponent(`addComponent`,true)" size="sm">
          <i class="layui-icon layui-icon-add-one"></i>新增
        </lay-button>
        <download-excel class="hide-on-phone marginL10" :fields="exportExcel.fields" :data="exportExcelData" :type="exportExcel.type" :name="exportExcel.filename">
          <lay-button size="sm" type="danger">
            <i class="layui-icon layui-icon-export marginR5"></i>导出 Excel
          </lay-button>
        </download-excel>
      </view>
    </view>
    <view class="uni-container">
      <unicloud-db ref="udb" :collection="collectionList" :where="where" page-data="replace"
        field="create_date,type_name,type_description,type_sort,type_status"
        :orderby="orderby" :getcount="true" :page-size="options.pageSize" :page-current="options.pageCurrent"
        v-slot:default="{data,pagination,loading,error,options}" :options="options" loadtime="manual" @load="onqueryload">
        <uni-table ref="table" :loading="loading" :emptyText="error.message || '没有更多数据'" border stripe type="selection" @selection-change="selectionChange">
          <uni-tr>
            <uni-th  align="center" @filter-change="filterChange($event, 'type_sort')" sortable @sort-change="sortChange($event, 'type_sort')">排行</uni-th>
            <uni-th  align="center" filter-type="search" @filter-change="filterChange($event, 'type_name')" sortable @sort-change="sortChange($event, 'type_name')">分类名称</uni-th>
            <uni-th align="center" filter-type="search" @filter-change="filterChange($event, 'type_description')" sortable @sort-change="sortChange($event, 'type_description')">分类描述</uni-th>
            <uni-th  align="center" sortable @sort-change="sortChange($event, 'type_status')">启用或关闭</uni-th>
            <uni-th  align="center">创建时间</uni-th>
            <uni-th  align="center">操作</uni-th>
          </uni-tr>
          <uni-tr v-for="(item,index) in data" :key="index">
            <uni-td align="center">{{item.type_sort}}</uni-td>
            <uni-td align="center">{{item.type_name}}</uni-td>
            <uni-td align="center">
              <lay-tooltip v-if="item.type_description.length>20" :content="item.type_description" :isDark="false">
                  <div class="flexStyle">{{item.type_description.substr(0,20)+' ...'}}</div>
              </lay-tooltip>
              <div v-else>{{item.type_description}}</div>
            </uni-td>
            <uni-td align="center">{{item.type_status == true ? '✅' : '❌'}}</uni-td>
            <uni-td align="center">
              <uni-dateformat :date="item.create_date" :threshold="[0,0]"></uni-dateformat>
            </uni-td>
            <uni-td align="center">
              <view class="uni-group">
                <lay-button type="normal"  @click="layerComponent(`editComponent`,true,item)" size="sm">
                  <i class="layui-icon layui-icon-edit marginR2"></i>修改
                </lay-button>
                <lay-button type="danger" @click="confirmDelete(item._id)" size="sm">
                  <i class="layui-icon layui-icon-delete marginR3"></i>删除
                </lay-button>
              </view>
            </uni-td>
          </uni-tr>
        </uni-table>
        <view class="uni-pagination-box">
          <uni-pagination show-icon :page-size="pagination.size" v-model="pagination.current" :total="pagination.count" @change="onPageChanged" />
        </view>
      </unicloud-db>
    </view>
  </view>
</template>

<script>
  import { enumConverter, filterToWhere } from '../../js_sdk/validator/food-store-types.js';
  import {store} from '@/uni_modules/uni-id-pages/common/store.js'
  import addComponent from './add.vue'
  import editComponent from './edit.vue'
  const omponentTitle={
    addComponent:`新增商品分类`,
    editComponent:`修改商品分类`
  }

  const db = uniCloud.database()
  // 表查询配置
  const dbOrderBy = 'create_date desc' // 排序字段
  const dbSearchFields = [] // 模糊搜索字段，支持模糊搜索的字段列表。联表查询格式: 主表字段名.副表字段名，例如用户表关联角色表 role.role_name
  // 分页配置
  const pageSize = 20
  const pageCurrent = 1

  const orderByMapping = {
    "ascending": "asc",
    "descending": "desc"
  }

  export default {
    components:{
      addComponent,
      editComponent
    },
    data() {
      return {
        layerTitle:`商品分类管理`,
        layerVisible:false,


        collectionList: `food-store-types`,
        query: '',
        where: '',
        orderby: dbOrderBy,
        orderByFieldName: "",
        selectedIndexs: [],
        options: {
          pageSize,
          pageCurrent,
          filterData: {},
          ...enumConverter
        },
        imageStyles: {
          width: 64,
          height: 64
        },
        exportExcel: {
          "filename": "food-store-types.xls",
          "type": "xls",
          "fields": {
            "所属商户": "merchant_id",
            "分类名称": "type_name",
            "分类描述": "type_description",
            "分类排行": "type_sort",
            "启用或关闭": "type_status"
          }
        },
        exportExcelData: []
      }
    },
    onLoad() {
      this._filter = {}
    },
    mounted() {
      this.search();
    },
    methods: {
      getBaseWhere(params){
        if(store.userInfo&&store.userInfo.merchant_id){
            if(typeof params === 'string'){
              params+=`merchant_id=="${store.userInfo.merchant_id}"`
            }else{
              params.merchant_id=store.userInfo.merchant_id
            }
        }
        return params
      },
      async layerComponent(name,status=false,params){
        this.layerTitle=omponentTitle[name]
        this.componentName=name
        this.layerVisible=status;
        if(params){
          await this.$nextTick()
          this.$refs.childComponent.init(params._id)
        }
      },


      onqueryload(data) {
        this.exportExcelData = data
      },
      getWhere() {
        const query = this.query.trim()
        if (!query) {
          return ''
        }
        const queryRe = new RegExp(query, 'i')
        return dbSearchFields.map(name => queryRe + '.test(' + name + ')').join(' || ')
      },
      search() {
        const newWhere = this.getWhere()
        this.where = this.getBaseWhere(newWhere)
        this.$nextTick(() => {
          this.loadData()
        })
      },
      loadData(clear = true) {
        this.$refs.udb.loadData({
          clear
        })
      },
      onPageChanged(e) {
        this.selectedIndexs.length = 0
        this.$refs.table.clearSelection()
        this.$refs.udb.loadData({
          current: e.current
        })
      },
      navigateTo(url, clear) {
        // clear 表示刷新列表时是否清除页码，true 表示刷新并回到列表第 1 页，默认为 true
        uni.navigateTo({
          url,
          events: {
            refreshData: () => {
              this.loadData(clear)
            }
          }
        })
      },
      // 多选处理
      selectedItems() {
        var dataList = this.$refs.udb.dataList
        return this.selectedIndexs.map(i => dataList[i]._id)
      },
      // 批量删除
      delTable() {
        this.$refs.udb.remove(this.selectedItems(), {
          success:(res) => {
            this.$refs.table.clearSelection()
          }
        })
      },
      // 多选
      selectionChange(e) {
        this.selectedIndexs = e.detail.index
      },
      confirmDelete(id) {
        this.$refs.udb.remove(id, {
          success:(res) => {
            this.$refs.table.clearSelection()
          }
        })
      },
      sortChange(e, name) {
        this.orderByFieldName = name;
        if (e.order) {
          this.orderby = name + ' ' + orderByMapping[e.order]
        } else {
          this.orderby = ''
        }
        this.$refs.table.clearSelection()
        this.$nextTick(() => {
          this.$refs.udb.loadData()
        })
      },
      filterChange(e, name) {
        this._filter[name] = {
          type: e.filterType,
          value: e.filter
        }
        let newWhere = filterToWhere(this._filter, db.command)
        if (Object.keys(newWhere).length) {
          this.where = this.getBaseWhere(newWhere)
        } else {
          this.where = this.getBaseWhere('')
        }
        this.$nextTick(() => {
          this.$refs.udb.loadData()
        })
      }
    }
  }
</script>

<style>
</style>
